.login-form{
    width: 396px;
    height: 400px;
    background-color: blue;
    margin: 0 auto;
    margin-top: 20px;
}
.tips-inner{
    width: 100%;
    padding: 10px 0;
}
.tips-inner .tips-list{
    width: 90%;
}
.tips-inner .tips-list .tips-icon{
    width: 16px;
    height: 16px;
    background-image: url(https://misc.360buyimg.com/user/passport/1.0.0/widget/login-form-2018-0827/i/icon-tips.png);
    background-repeat: no-repeat;
}